comparison toolboxes/FullBNT-1.0.7/KPMstats/chisquared_readme.txt @ 0:e9a9cd732c1e tip

first hg version after svn

+From ftp://ftp.mathworks.com/pub/contrib/v4/stats/chisquared/
+
+Chi-squared probability function.
+
+Abstract 
+m-files to compute the Chi-squared probability function, and
+the percentage points of the probability function.
+
+P = CHISQUARED_PROB( X2, v ) returns P(X2|v), the probability
+of observing a chi-squared value <= X2 with v degrees of freedom.
+This is the probability that the sum of squares of v unit-variance
+normally-distributed random variables is <= X2.
+
+Conversely:
+X2 = CHISQUARED_TABLE( P, v ) returns the X2, the value of
+chi-squared corresponding to v degrees of freedom and probability P.
+
+In reference textbooks, what is normally tabulated are the
+percentage points of the chi-squared distribution; thus, one
+would use CHISQUARED_TABLE rather than interpolate such a table.
+
+References: Press et al., Numerical Recipes, Cambridge, 1986;
+Abramowitz & Stegun, Handbook of Mathematical Functions,
+Dover, 1972;  Table 26.8
+
+Peter R. Shaw
+Woods Hole Oceanographic Institution, Woods Hole, MA 02543
+[phone] ext. 2473
[e-mail]
+
+--FILES GENERATED--
+README_chisq
+chisquared_prob.m  (function) -- chi-squared probability function
+chisquared_table.m  (function) -- "percentage points" (i.e., inverse)
+                                   of chi-squared probability function
+chiaux.m (function) -- auxiliary fn. used by chisquared_table